diff --git a/easyexcel-core/src/main/java/com/alibaba/excel/analysis/ExcelAnalyserImpl.java b/easyexcel-core/src/main/java/com/alibaba/excel/analysis/ExcelAnalyserImpl.java
index 161c2943..05d4fa84 100644
--- a/easyexcel-core/src/main/java/com/alibaba/excel/analysis/ExcelAnalyserImpl.java
+++ b/easyexcel-core/src/main/java/com/alibaba/excel/analysis/ExcelAnalyserImpl.java
@@ -173,7 +173,7 @@ public class ExcelAnalyserImpl implements ExcelAnalyser {
             throwable = t;
         }
 
-        // close csv
+        // close csv.
         // https://github.com/alibaba/easyexcel/issues/2309
         try {
             if ((readWorkbookHolder instanceof CsvReadWorkbookHolder)